The fundamental debate about the melacha of "losh" (kneading) between Rebbe and Rabbi Yosi Brebbe Yehuda- analysis of Iglei Tal, Rav Neventzal- practical case of salt in soup, sugar in coffee, and dipping challah in soup
Manufacturing a process that ends in a prohibition- debate of Beit Shammai/Hillel, analysis of causing the name of Hashem to be erased in a Torah indirectly